зона, вільна від загороджень (щоб не заважати маневру своїх сил)
restricted area (airspace)
restricted area (under military jurisdiction)
restricted operations area
restricted area
airspace restricted area
restricted (security classification)
restricted
restricted-burning rocket (engine)
restricted-weapons zone
restricted target
restricted target lists (RTL)
restricted articles
restricted job
restricted visibility
instrument restricted airspace
security-restricted
flight restriction zone / flight restricted zone (FRZ)
restricted frequency list (RFL)
Restricted Operations Zone (ROZ) (hot vs cold)
altitude barrier
antisubmarine barrier
barrier materials
barrier minefield
barrier plan
barrier system
barrier troops / blocking detachments (units) / anti-retreat forces
boom barrier (boom gate)
concrete barrier
portable vehicle-arresting barrier (PVAB)
sonic barrier
vehicle-arresting barrier
barrier inspection